Electrically-adjustable dumbbell

ABSTRACT

The present disclosure relates to an electrically-adjustable dumbbell, comprising a handle part, wherein installation parts connected to the handle part are respectively arranged at the two sides of the handle part, and the outer sides of the installation parts are used to be connected to dumbbell plates; the central part of the handle part is an axially through channel, and an adjusting mechanism in fit with the inner wall of the channel in shape is arranged in the channel. The dumbbell provided by the present disclosure is reasonable in structural design, electric adjustment of the dumbbell is achieved by using the adjusting mechanism composed of the motor, the threaded rod and the limiting plates, the adjusting process can be achieved only by manually operating a control circuit board, manual adjustment of the dumbbell plates is not needed, operation is convenient, and the user experience effect is improved.

TECHNICAL FIELD

The present disclosure relates to the technical field of fitness equipment, and in particular relates to an electrically-adjustable dumbbell.

BACKGROUND

In the prior art, the use of dumbbells has become a common tool for daily fitness. In order to adapt to the needs of different users, products capable of adjusting the number and weight of dumbbell plates have emerged. However, the adjustment mode of this product is mainly manual adjustment, the adjustment operation still cannot meet the pursuit of convenience of the product by the people.

SUMMARY

To solve the disadvantages in the prior art, an objective of the present disclosure is to provide an electrically-adjustable dumbbell, the number and weight of dumbbell plates of a dumbbell can be adjusted by key operation.

A technical solution employed by the present disclosure to solve the technical problem is as follows:

An electrically-adjustable dumbbell comprises a handle part, installation parts connected to the handle part are respectively arranged at the two sides of the handle part, and the outer sides of the installation parts are used to be connected to dumbbell plates, wherein the central part of the handle part is an axially through channel, and an adjusting mechanism in fit with an inner wall of the channel in shape is arranged in the channel;

the adjusting mechanism comprises two limiting plates which are symmetrically distributed, a threaded rod is arranged between the two limiting plates and is meshed with inner sidewalls of the two limiting plates respectively, and an outside end part of the threaded rod is connected to an output shaft of a fixedly arranged motor; the motor drives the threaded rod to rotate, and the threaded rod drives the two limiting plates to slide in opposite directions in the channel respectively.

The inner sidewalls of the two limiting plates are attached and slidingly connected to each other, and a channel is formed in the central part of the connecting position of the two limiting plates; a vertically distributed gear is arranged in the channel, and the two sides of the gear are meshed with the inner sidewalls of the limiting plates.

The surface of one side of each of the installation parts is provided with a notch part communicating with the channel, and an outer wall of the adjusting mechanism is located on the outer side of the notch part; inner walls of the openings of the dumbbell plates connected to the installation part are provided with limiting grooves corresponding to the position of the notch part, and the adjusting mechanism is located in the limiting grooves.

The dumbbell further comprises a control circuit board electrically connected to the motor, and a battery pack electrically connected to the control circuit board; and the control circuit board and the battery pack are respectively installed on the handle part.

A groove body is formed in the top surface of each installation part of the handle part, and the control circuit board is installed in the groove body.

The outer side of the control circuit board is fixed by a pressing plate, and the pressing plate is provided with an opening corresponding to keys and a display screen of the control circuit board.

The battery pack is located on the outer side of each installation part of the handle part and is provided with an end cover at the outer side, the outer side of the battery pack is covered with the end cover, and the end cover is fixedly connected to the installation part.

The dumbbell further comprises a base, the dumbbell plates are respectively arranged in the base, the openings of the dumbbell plates face upwards, and the handle part is arranged in the openings of the dumbbell plates.

The present disclosure has the beneficial effects that the structural design is reasonable, the electric adjustment of the dumbbell is achieved by using the adjusting mechanism composed of the motor, the threaded rod and the limiting plates; the adjusting process can be adjusted only by manually operating the control circuit board, manual adjustment of the dumbbell plates is not needed, operation is convenient, and the user experience effect is improved.

BRIEF DESCRIPTION OF THE DRAWINGS

The following describes the present disclosure in detail with reference to the accompanying drawings and embodiments.

FIG. 1 is a schematic diagram of a front view structure of the present disclosure.

FIG. 2 is a schematic diagram of a side view structure of the present disclosure.

FIG. 3 is a schematic diagram of an axonometric structure of the present disclosure.

FIG. 4 is a schematic diagram of an axonometric structure of the present disclosure (with the handle part partially concealed).

FIG. 5 is a schematic diagram of a partial enlarged structure of A in FIG. 4.

FIG. 6 is a schematic diagram of an exploded structure of the present disclosure.

FIG. 7 is a schematic diagram of a partial enlarged structure of a first tooth space and a second tooth space in FIG. 6.

FIG. 8 is a schematic diagram of a partial enlarged structure of an opening of a dumbbell plate in FIG. 6.

FIG. 9 is a schematic diagram of a structure of a limiting plate.

In the drawings: 100—handle part; 101—end cover; 102—installation part; 103—groove body; 104—pressing plate; 105—notch part; 106—dumbbell plate groove; 200—dumbbell plate; 201—opening; 202—limiting groove; 300—base; 400—motor; 401—battery pack; 402—control circuit board; 403—threaded rod; 500—limiting plate; 501—first tooth space; 502—second tooth space; 503—gear.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The embodiment of the present disclosure is described below by specific embodiments, and other advantages and effects of the present disclosure can be easily understood by people familiar with the technology from the contents disclosed in the specification.

As shown in FIG. 1 to FIG. 9, this embodiment provides an electrically-adjustable dumbbell, comprising a handle part 100, dumbbell plates 200, and a base 300; installation parts 102 connected to the handle part are respectively arranged at the two sides of the handle part 100, the base 300 is located at the bottom, and a plurality of bottom grooves distributed side by side are formed in the top surface of the base 300; the dumbbell plates 200 are respectively arranged in the bottom grooves to maintain uniform and ordered distribution of the dumbbell plates 200, such that the spacing between the dumbbell plates 200 is distributed according to standard dimensions, and a standard electrical design can be maintained in an electrically-adjustable structure. Openings 201 of the dumbbell plates 200 face upwards to form orthographic projection overlapping distribution between the adjacent dumbbell plates 200, and the handle part 100 is installed in the openings 201 of the dumbbell plates 200, such that the dumbbell plates 200 are respectively located at the two sides of the handle part 100 and are provided in correspondence with the installation part 102 to be fitted and connected for use.

Wherein, the central part of the handle part 100 is an axially through channel, the section of the channel is round, and an adjusting mechanism in fit with the inner wall of the channel in shape is arranged in the channel; an outer wall of the adjusting mechanism is also round, and the whole adjusting mechanism is of a cylindrical structure, such that the adjusting mechanism can be arranged in the channel smoothly;

the adjusting mechanism comprises two limiting plates 500 which are symmetrically distributed, a section main body of each limiting plate 500 is of a half-round structure, and the inner sidewalls of the two limiting plates 500 are partially attached and slidingly connected to each other; notches are formed in a right side part of the inner sidewall of the front limiting plate 500 and in a left side part of the inner sidewall of the rear limiting plate 500, such that the dimensions of the limiting plates 500 at the notch parts are reduced. A flat channel is formed between the two limiting plates after the two limiting plates 500 are combined, and the limiting plates cannot be in contact with each other at the position of the channel; and meanwhile, a vertically distributed gear 503 is arranged in the channel, and corresponding first tooth spaces 501 arc further machined in the inner sidewalls of the two limiting plates 500 and are used for being meshed with the gear 503. The synchronous rotation of the two limiting plates 500 can be kept through the arrangement of the gear 503, thus keeping the gap between the two limiting plates 500 normal.

Meanwhile, a threaded rod 403 is arranged between the two limiting plates 500, the threaded rod 403 is located at the left side, and second tooth spaces 502 are further machined in the inner sidewalls of the two limiting plates 500 on the basis of the first tooth spaces 501 and are used to be in fit with the threaded rod 403, such that the threaded rod 403 is respectively meshed with the inner sidewalls of the two limiting plates 500; an outside end part of the threaded rod 403 is connected to an output shaft of a fixedly arranged motor 400; and in a power-on condition, the motor 400 rotates to drive the threaded rod 403 to rotate. Due to the fact that the two limiting plates 500 are symmetrically distributed, the threaded rod 403 can drive the two limiting plates 500 to slide in opposite directions in the channel respectively, and sliding directions of the limiting plates 500 may be leftwards or rightwards to facilitate the two limiting plates 500 to be in fit with the installation parts 102 at the two sides for operation.

An electrically-adjustable basic structure is achieved through above structures. However, in order to achieve the control of motor 400 driving, the above structure further comprises a control circuit board 402 electrically connected to the motor 400, and a battery pack 401 electrically connected to the control circuit board 402, wherein

a groove body 103 is formed in the top surface of the installation part 102 at the left side of the handle part 100, and the control circuit board 402 is installed in the groove body 103; the outer side of the control circuit board 402 is fixed by a pressing plate 104, and the pressing plate 104 is provided with an, opening 201 corresponding to keys and a display screen of the control circuit board 402: two keys of the control, circuit board 402 respectively correspond to signals for controlling to increase and reduce the number of dumbbell plates 200. When the number of the dumbbell plates 200 is increased or reduced, the corresponding signal may control the motor 400 to drive the two limiting plates 500 to reach specified positions, thus making the installation part 102 in fit with the dumbbell plates 200 to achieve the adjusting effect. The battery pack 401 is located on the outer side of the installation part 102 of the handle part 100, the battery pack 401 is provided with an end cover 101 at the outer side, the outer side of the battery pack 401 is covered with the end cover 101, and the end cover is fixedly connected to the installation part 102. On the one hand, the problem of an installation space of the battery pack 401 is solved; on the other hand, a protection effect is formed at the outer side of the battery pack 401, and the appearance of the battery pack is visually pleasing and is easy to be accepted by a user.

In above structure, in order to achieve the connection between the installation parts 102 and the dumbbell plates 200 by the adjusting mechanism, the surface of one side of the installation part 102 is provided with a notch part 105, the position of the notch part 105 communicates with the inside of the channel, and the notch part 105 covers positions of all dumbbell plate grooves 106 at the outer side of the installation part 102, such that each dumbbell plate 200 can be in fit with the adjusting mechanism for use. The outer wall of the adjusting mechanism is located on the outer side of the notch part 105, inner walls of the openings 201 of the dumbbell plates 200 connected to the installation part 102 are provided with limiting grooves 202 corresponding to the position of the notch part 105, the shape of each limiting groove 202 is in fit with the outer wall of the limiting plate 500 in shape, and the adjusting mechanism is located in the limiting grooves 202. Due to the fact that each limiting plate 500 of the adjusting mechanism can be slidingly adjusted, when the exposed length of the limiting plate 500 at the notch part 105 only corresponds to one dumbbell plate 200, only one dumbbell plate 200 is lifted with the handle part 100 as a balance weight when the handle part 100 is lifted. When the exposed length of the limiting plate 500 at the notch part 105 is increased, the number and weight of the dumbbell plates 200 may also be increased; and when the motor 400 rotates reversely, the number of dumbbell plates 200 may also be controlled to be reduced correspondingly to meet usage requirements of the user.

The above is only the preferred embodiments of the present disclosure, and the technical solution that the purpose of the present disclosure is achieved by basically the same means is within the scope of protection of the present disclosure. 

What is claimed is:
 1. An electrically-adjustable dumbbell, comprising a handle part, wherein installation parts connected to the handle part are respectively arranged at the two sides of the handle part, and the outer sides of the installation parts are used to be connected to dumbbell plates; the central part of the handle part is an axially through channel, and an adjusting mechanism in fit with the inner wall of the channel in shape is arranged in the channel; the adjusting mechanism comprises two limiting plates which are symmetrically distributed, a threaded rod is arranged between the two limiting plates, the threaded rod is meshed with the inner sidewalls of the two limiting plates respectively, and an outside end part of the threaded rod is connected to an output shaft of a fixedly arranged motor; the motor drives the threaded rod to rotate, and the threaded rod drives the two limiting plates to slide in opposite directions in the channel respectively.
 2. The electrically-adjustable dumbbell according to claim 1, wherein the inner sidewalls of the two limiting plates are attached and slidingly connected to each other, and a channel is further formed in the central part of the connecting position of the two limiting plates; a vertically distributed gear is arranged in the channel, and the two sides of the gear are meshed with the inner sidewalls of the limiting plates.
 3. The electrically-adjustable dumbbell according to claim 1, wherein the surface of one side of each of the installation parts is provided with a notch part communicating with the channel, and the outer wall of the adjusting mechanism is located on the outer side of the notch part; and inner walls of the openings of the dumbbell plates connected to the installation part are provided with limiting grooves corresponding to the position of the notch part, and the adjusting mechanism is located in the limiting grooves.
 4. The electrically-adjustable dumbbell according to claim 1, further comprising a control circuit board electrically connected to the motor, and a battery pack electrically connected to the control circuit board, wherein the control circuit board and the battery pack are respectively installed on the handle part.
 5. The electrically-adjustable dumbbell according to claim 4, wherein a groove body is formed in the top surface of each installation part of the handle part, and the control circuit board is arranged in the groove body.
 6. The electrically-adjustable dumbbell according to claim 5, wherein the outer side of the control circuit board is fixed by a pressing plate, and the pressing plate is provided with an opening corresponding to keys and a display screen of the control circuit board.
 7. The electrically-adjustable dumbbell according to claim 4, wherein the battery pack is located on the outer side of each installation part of the handle part and is provided with an end cover at the outer side, the outer side of the battery pack is covered with the end cover, and the end cover is fixedly connected to the installation part.
 8. The electrically-adjustable dumbbell according to claim 1, further comprising a base, wherein the dumbbell plates are respectively arranged in the base, openings of the dumbbell plates face upwards, and the handle part is arranged in the openings of the dumbbell plates. 